CN103874886A - Steam generator - Google Patents

Steam generator Download PDF

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Publication number
CN103874886A
CN103874886A CN201280050322.6A CN201280050322A CN103874886A CN 103874886 A CN103874886 A CN 103874886A CN 201280050322 A CN201280050322 A CN 201280050322A CN 103874886 A CN103874886 A CN 103874886A
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CN
China
Prior art keywords
steam generator
outlet
steam
plane
vaporizer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201280050322.6A
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Chinese (zh)
Other versions
CN103874886B (en
Inventor
O·乌尔多贾克
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharkninja Operating LLC
Original Assignee
Euro Pro Operating LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US201161530481P priority Critical
Priority to US61/530,481 priority
Priority to US13/474,217 priority
Priority to US13/474,217 priority patent/US9964299B2/en
Application filed by Euro Pro Operating LLC filed Critical Euro Pro Operating LLC
Priority to PCT/US2012/053364 priority patent/WO2013033548A1/en
Publication of CN103874886A publication Critical patent/CN103874886A/en
Application granted granted Critical
Publication of CN103874886B publication Critical patent/CN103874886B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00Methods of steam generation characterised by form of heating method
    • F22B1/28Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/284Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers

Abstract

A steam generator includes an inlet configured to receive a liquid (such as water); a heating element for converting the liquid into a vapor (such as steam), the vapor bearing particles such as mineral deposits formed by the converting of the liquid; an outlet in fluid communication with the inlet, the outlet configured to discharge filtered vapor and having a size on the order of larger ones of the particles; and a filter structure adjacent to the outlet to filter the larger particles out of the vapor to produce the filtered vapor for discharge from the outlet. By action of the filter structure, larger particles are prevented from reaching the outlet, reducing clogging and extending the usable lifetime of a small appliance containing the steam generator. The filter structure may include spaced-apart members such as posts or pillars extending perpendicularly in a planar fluid flow passage.

Description

Steam generator
Technical field
The present invention relates to the steam generator field for the small steam equipment such as steam cleaner, steam mop etc.
Background technology
Known use steam generator is converted into steam by aqueous water and is used as the part such as the operation of the small steam equipment of consumer's steam cleaner, steam mop etc.Steam generator generally includes heating element heater and sets up the encirclement structure of fluid flowing path, and water flows take the thermal transition by from heating element heater as steam along this fluid flowing path.Via the outlet of steam generator, the steam obtaining is provided to the discharge of steam parts that separate of mini-plant.
Summary of the invention
In small steam equipment, steam can be discharged from steam generator in relatively narrow exit, and steam enters other use location steam discharge member or equipment from this export house.In conversion process, owing to there are mineral, such as the calcium in water and magnesium, can form the solid particle such as mineral salt.Mineralization is in steam generator, and deposit is piled up in time.The material of deposition may be relatively large the form of particle be moved out of, this can cause outlet to be stopped up.Finally, the degree that obstruction can increase to the valid function of reduction equipment or it cannot be used completely.Therefore the length in service life that, in the steam generator of equipment, granuloplastic operation of nature can decision device.
The present invention discloses a kind of steam generator, and it can obtain good life expectancy by this obstruction in the exit of minimizing exhaust steam.Described steam generator comprises: the entrance that is configured to receive liquid (such as water); For liquid rotating being turned to the heating element heater of vaporizer (such as steam), this vaporizer carries the particle forming by invert liquid; The outlet being communicated with inlet fluid, described outlet is configured to discharge filtered vaporizer and has the size similar to larger particles in particle; And filtration device structure, it is adjacent to filter out larger particles from vaporizer with outlet, thereby produces the filtered vaporizer of discharging from outlet.By the effect of filtration device structure, prevent that larger particles from arriving outlet, thereby reduce the service life of blocking and extend the mini-plant that comprises steam generator.
In certain embodiments, filtration device structure comprises one group of isolated member, and isolated member forms the screen part of the opening that is substantially greater than outlet.Described member can be formed as the post or the bar that in the plane channel that liquid and vaporizer flow through, vertically extend.These posts and bar can be integrally formed with the lid of steam generator or other structural elements, such as by molded or die casting.Interval between member can be set to relevant to the diameter exporting, and to guarantee larger particles by components capture, less particle can be discharged through member and from outlet.
Accompanying drawing explanation
According to the following description of specific embodiment of the present invention as shown in the drawing, above-mentioned and other objects, features and advantages will be apparent, spread all in the accompanying drawings different views, and similar Reference numeral represents identical parts.Accompanying drawing needn't in proportion, on the contrary, focus on illustrating the principle of each embodiment of the present invention.
Fig. 1 is the schematic diagram of steam generator;
Fig. 2 and 3 is stereograms of steam generator;
Fig. 4 is fractionation or the exploded view of steam generator;
Fig. 5 is the view of the inner surface at steam generator top;
Fig. 6 is the view of the inner surface of steam generator bottom;
Fig. 7 is the view of the mid portion of steam generator.
The specific embodiment
Will be appreciated by those skilled in the art that in the situation that not departing from spirit of the present invention or substantive characteristics, the present invention may other particular form realize.Therefore, current disclosed embodiment is considered to illustrative and nonrestrictive in all fields.
Fig. 1 is the schematic diagram of the steam generator 10 of the type that uses in mini-plant.Steam generator 10 generally includes housing or other structure of delimit chamber 12, in chamber 12, heats the steam being discharged to be formed on exit from the heated element 14 of aqueous water of entrance.Adjacent with outlet is filtration device structure 16, and filtration device structure 16 filters out the particle that is greater than a certain size, prevents that these particles from arriving relatively narrow outlet, and in exit, these particles block and reduce the operating characteristics of equipment by causing.
Generally speaking, filtration device structure 16(is also known as " filter " 16 at this) there is the effective surface area transverse to stream, this effective surface area is significantly greater than the opening of outlet, thereby makes the speed of the particulates plug that filter 16 is filtered out be starkly lower than the speed that outlet gets clogged in the situation that not there is not filter.For example, but five times of the size of the effective area exit opening of filter or larger.Particular instance is described below.
Although not shown in Fig. 1, should be appreciated that, steam generator 10 receives water from water supply system, and water supply system can comprise water receiver, pipeline or pipe and one or more valve.Water can be supplied under Action of Gravity Field, or can use the mechanical pressurization device of some form, such as pump.Steam is transported to one or more use locations, and use location may be for example discharge nozzle/opening at device outer surface place.
Fig. 2 and 3 is stereograms of the steam generator 20 of observing from respective end according to an embodiment of the invention, and wherein, steam generator 20 embodies the entire arrangement shown in Fig. 1.In some instances, steam generator 20 also can be known as ebullator.Steam generator 20 comprises main body or housing, and this main body or housing have the entrance 22 that is configured to receive liquid.In certain embodiments, but liquid water or mixed solution, and the liquid of other type or fluid.In other embodiments, mixed solution may be the mixture of vinegar/water, detergent/water or clean solution/water, and other suitable cleaning mixt.
Steam generator 20 comprises the internal heating element (not shown in Fig. 2 and 3) that receives electric energy via a pair of electrical contact 28.Heating element heater can turn to liquid rotating vaporizer (for example, water being converted into steam).Steam generator 20 also comprises the outlet 24 being communicated with entrance 22 fluids, wherein, and outlet 24 vaporizers that can discharge in steam generator 20 interior generations.For example, being converted into the water of steam by heating element heater can for example, from exporting 24 discharges (, be ejected or discharge).
As shown in Figures 2 and 3, the housing of steam generator 20 or the some parts of main body can comprise post 26 or similar exterior mechanical feature, post 26 or similarly exterior mechanical feature are for being arranged on steam generator 20 in steaming plant, such as steam mop or hand-held steam parts, and other uses the device of steam.The example of steaming plant is included in the those disclosed in the open US2009/0320231A1 of United States Patent (USP) and US2008/0066789A1, for the disclosed full content of the each United States Patent (USP) of all objects is incorporated herein by reference.
In Fig. 2 and 3, also show multiple apertures 30.As described in more detail below, steam generator 20 is made up of multiple planar sections, and the bolt (not shown) of aperture 30 receivings for multiple parts are tightened together.In other embodiments, steam generator can be molded as shape or use some other instruments that connect each several part, is unnecessary thereby make aperture 30.In certain embodiments, energy modularly constructing steam generator 20, can also use other suitable manufacture method in addition.
In Fig. 2 and 3, also show recess or hole 29 for keeping thermostat (not shown) separately.Thermostat provides the electricity output of the temperature of indication steam generator 20, control circuit (also not shown) is separately exported to switch with this electricity or is otherwise controlled and be provided to the electric energy of steam generator 20, thereby the temperature of operating period is remained in the scope of expectation.In one embodiment, have the temperature of approximately 120 ℃ from exporting the steam of 24 discharges, this is by keep the temperature of approximately 140 ℃ to realize at thermostat place.In an illustrated embodiment, adjacent with entrance 22 for the position of the recess 29 of thermostat, this is for realizing during operation sensitiveer temperature sensing and controlling and can expect.
Fig. 4 is the exploded view of steam generator 20, and three separate parts or the part that are called as top 40, mid portion 50 and bottom 60 are shown.Heating element heater is arranged in mid portion 50, bilateral plane housing 51 (more details are below provided), and bilateral plane housing 51 is used as the external member of assembly or the top of lid 40 and bottom 60 and surrounds.Each group blade (be respectively the bars 52 and 62 of mid portion 50 and bottom 60, the blade at top 40 is invisible in Fig. 4) limits short roundabout stream, and water and vaporizer flow to outlet 24 along this roundabout stream from entrance 22.In addition, water and vaporizer flow to upside via the open area 53 between the periphery of housing 51 and the perisporium of mid portion 50 from the downside of housing 51.During operation, the water of advancing along internal flow path from entrance 22 and housing 51 close contacts heated its boiling point that exceedes, to produce the steam of discharging via outlet 24.
Further about blade 52,62, their limit the position opening part of (for example, their ends) of the direction flip-flop of fluid flowing path.Although it is useful that roundabout stream transmits for increase and the heat of fluid, if their length is long, also contribute to sediment pile.Therefore, conventionally preferably, the direction that less number of times only occurs in fluid flowing path changes, such as three times or still less.In the embodiment shown, cross over the surface of mid portion 50, the change of twice this path direction only occurs.
As previously mentioned, in one embodiment, part 40,50 is together with 60 can be bolted.For this reason, mid portion 50 thereon surface and lower surface on can there is screwed hole 55, and top 40 and bottom 60 have non-threaded hole 30, corresponding bolt (not shown) is extended with engagement with threaded aperture 50 and thus top 40 and bottom 60 is remained to mid portion 50 by opening 30.Although it will be understood by those skilled in the art that steam generator 20 disclosed herein has three parts 40,50 and 60, can utilize still less or more partly construct steam generator 20, as expected in alternate embodiment.
Fig. 5 is the plane of the inner surface at the top 40 of steam generator 20, and in the time being assembled together, this inner surface is facing to the upper surface of mid portion 50.As shown in the figure, top 40 comprises the outlet 24 of discharging vaporizer.In one embodiment, the diameter of bore of outlet 24 can be at about 1mm to the scope of about 10mm.Here term " about " represents to be not more than the deviation of +/-20%.In different embodiment, the diameter of outlet 24 can be any in multiple values, comprises for example about 1.5mm or about 2mm or about 2.5mm or about 3mm or about 3.5mm or about 4mm or about 4.5mm or about 5mm or about 6mm or about 7mm or about 8mm or about 9mm.In other embodiments, the diameter of outlet 24 can be less than about 10mm or is less than about 7.5mm or is less than about 5mm or is less than about 2.5mm.
Top 40 comprises Fig. 4 with mid portion 50() a pair of blade 42 that engages of upper surface blade 52, for guiding as described above liquid and vaporizer.The liquid of advancing in the planar cavity between top 40 and mid portion 50 or passage in operation, and vaporizer are by blade 42,52 guidings or guiding.In certain embodiments, liquid and/or vaporizer can, by the stirring that blade 42,52 affects or disturbance is expected with generation, be discussed in greater detail it below.
Top 40 comprises the multiple isolated member 44 that is substantially adjacent to layout with outlet 24.These members play the filtration device structure 16 of Fig. 1.Pin, post or the bar that extend on the surface that member 44 can be formed as facing mutually from the inner surface at top 40 and/or from mid portion 50.In the embodiment shown, in the time being assembled together, member 44 vertically extend to cross over outlet 24 places plane channel, partially or even wholly between top 40 and the corresponding surface of mid portion 50.
Liquid, such as the water from house or business water source, can comprise the mineral of dissolving and for example, due to from heating liquid to vaporizer (, from water to steam) and can form sedimental other materials on the inner surface of steam generator 20.In water, contained mineral comprise calcium and magnesium conventionally, and other composition, compound and mineral.For example, in the time that solution (water) is heated to be vaporizer, deposit or residue can be separated out from this precipitation.Conventionally, precipitation itself is far smaller than the opening of outlet 24, and therefore they are discharged with vaporizer and can not pile up or otherwise cause blocking.But larger particles can be to have departed from inner surface and to have produced towards the form of outlet 24 deposition materials that delivered by liquid and vaporizer during operation.In addition,, through after a while, even if less precipitation self also can just be deposited in outlet 24 places, cause partially or even wholly blocking and reducing the operating characteristics of steam generator 20.
The array of member 44 can provide by it above-mentioned filtration of the surface area with increase by extending to cross over the relatively wide region of contiguous outlet 24 and produce vaporizer towards outlet 24 a large amount of paths of advancing.Any a small amount of space between member 44 can get clogged, and essence reduction vaporizer does not advance to the ability that exports 24.Vaporizer will naturally be walked around this obstruction and arrive outlet 24 towards open space and path, process member 44.Only, in the time that the major part in these spaces gets clogged, just can significantly reduce performance, compare not provide in filtration situation and block the required time of outlet 24, this obstruction will occur after the much longer time period.Therefore, compare other steam generator that does not use this filtration, can significantly increase the service life of steam generator 20.
As shown in Figure 5, spaced apart different interval S1, S2 and S3 of member 44.In one embodiment, interval S1, the S2 between member 44, S3 can be at about 1mm to the scopes of about 10mm.In certain embodiments, interval S1, the S2 between member 44, S3 can be in the scopes of about 1.5mm or about 2mm or about 2.5mm or about 3mm or about 3.5mm or about 4mm or about 4.5mm or about 5mm or about 6mm or about 7mm or about 8mm or about 9mm.In other embodiments, interval S1, the S2 between member 44, S3 can be less than about 10mm or be less than about 7.5mm or be less than about 5mm or be less than about 2.5mm.
In certain embodiments, interval S1, the S2 between member 44, S3 energy identical (for example S1=S2=S3=2mm).In other example, interval S1, S2, S3 between member 44 can differences (for example S1=1mm, S2=2mm, S3=3mm).Alternatively, interval S1, the S2 between member 44, S3 may be its combinations.
In one embodiment, interval S1, the S2 between member 44, S3 can be less than the diameter of outlet 24.In operation, in the time that mineral deposit or precipitation are greater than the opening of outlet 24, they can be trapped between member 44.Alternatively, in the time that mineral deposit or precipitation are less than the aperture of outlet 24, they more may and be discharged from by exporting 24 through member 44.
In certain embodiments, member 44 can be and forms the mesh configuration of pattern or have orderly orientation or arrangement.In other embodiments, member 44 is distributed in top 40 randomly, and does not have any orientation or arrangement.Alternatively, the combination that member 44 can have configuration, orientation and arrange.
Although in the embodiment shown, member 44 is integrally formed with top 40, and in alternate embodiment, similarly other parts of member 44 or filtration device structure 16 may be parts that is inserted into the filter element separating in stream.
Fig. 6 is the view of the inner surface of the bottom 60 of steam generator 20.Be similar to top 40, bottom 60 comprises a pair of blade 62 for the medium of direct fluid and evaporation.In certain embodiments, blade 62 can be in the chamber of steam generator 20 or indoor generation eddying motion.Vortex in chamber or Cyclonic motion can force precipitation or particle to arrive outside stream.Alternatively, eddying motion can cause the stream of rapid movement during fluid media (medium) is converted into the medium of evaporation and make the medium of evaporation at the better cleaning action of the interior generation of steam generator 20.In other words, the steam of rapid movement can be used as cleaning agent and the accumulation of mineral deposition particle is minimized.Any mineral deposition particle can be moved destroyed or disintegrated and be discharged from by exporting 24 by Quick steam.
Fig. 7 is the broken away view of the mid portion 50 of steam generator 20, and mid portion 50 has the shell-like structure that uses upper member 54 and lower member 56.Mid portion 50 comprises the U-shaped heating element heater 58 of circular cross-section substantially, and U-shaped heating element heater 58 is accommodated in the corresponding U-shaped recess 60 of member 54,56.In the embodiment shown, heating element heater 58 has the diameter of about 6mm and receives electric energy via joint 28.In one embodiment, heating element heater 58 can transmit the electric power of 1200W or the electric power of 1300W or higher.In certain embodiments, heating element heater 58 can produce other electric power output level.In certain embodiments, heating element heater 58 can be other shape and size.
In the above description of steam generator 20, entrance 22 is illustrated in bottom 60, and outlet 24 is illustrated in top 40, and heating element heater 52 is in mid portion 50.In different embodiment, can differently place these parts.In many situations, expect that heating element heater is middle, so that the less desirable heating of the outer surface of the equipment that comprises steam generator 20 minimizes.In addition,, although steam generator 20 comprises three parts 40,50,60 as shown in the figure, should be understood that substituting layout can be used more or less part, or use the single unit being integrally formed.
In certain embodiments, do not need steam generator disclosed herein to pressurize.In other embodiments, can pressurize to steam generator 20 disclosed herein.In some instances, steam generator 20 can be orientated to be vertically oriented (that is, entrance and exit is spaced apart generally along vertical direction) in operation, and in other example, steam generator 20 can be orientated with horizontal alignment.Alternatively, steam generator 20 can be orientated with multiple variable-angles or along multiple direction-changeable/orientations in the time being installed in steaming plant.
Steam generator disclosed herein can have relatively little area occupied (for example, size is less, weight is lighter) and can be incorporated in hand-held steaming plant, such as portable hand-held steam parts etc., as mentioned above.For example, steam generator 20 can have and is not more than approximately 500 grams or be not more than approximately 400 grams or be not more than approximately 300 grams or be not more than approximately 200 grams or be not more than the weight of approximately 100 grams.
Steam generator disclosed herein can be realized and is greater than 100 hours or is greater than 150 hours or is greater than 200 hours or is greater than 250 hours or is greater than the life expectancy of 300 hours.By doing like this, steam generator 20 can be through its entrance by being greater than about 100L water or being greater than about 200L water or being greater than about 300L water or being greater than about 400L water or being greater than about 500L water.
Although realize filtration device structure 16 by the array of member 44 in the above description, in alternate embodiment, may otherwise realize filtration device structure 16.As an example, can use fine grain wire netting substantially.Wire netting or similar structures can advantageously provide large surface area, have correspondingly extended the service life of steaming plant.
Although specifically illustrated and described each embodiment of the present invention, it should be appreciated by those skilled in the art that in the situation that not departing from as defined by the appended claims scope of the present invention, can carry out various changes to form and details at this.

Claims (18)

1. for a steam generator for mini-plant, comprising:
Be configured to receive the entrance of liquid;
For liquid rotating being turned to the heating element heater of vaporizer, this vaporizer carries the particle forming by invert liquid;
The outlet being communicated with inlet fluid, described outlet is configured to discharge filtered vaporizer and has the size similar to larger particles in particle; And
Filtration device structure, it is adjacent to filter out larger particles from vaporizer with outlet, thereby produces the filtered vaporizer of discharging from outlet.
2. steam generator according to claim 1, wherein, described filtration device structure comprises that formation is greater than the multiple isolated member of the screen part of the opening of outlet substantially.
3. steam generator according to claim 2, wherein, the interval between described isolated member comprises at least some intervals of the opening that is less than outlet.
4. steam generator according to claim 2, wherein, the interval between described isolated member is in the scope of 1 to 10 millimeter.
5. steam generator according to claim 2, it is also included in the plane channel in exit, and wherein, and isolated member is and the array of the isolated bar of the planar quadrature of plane channel.
6. steam generator according to claim 5, wherein, described bar has polygon cross section.
7. steam generator according to claim 6, wherein, described polygon cross section is square cross section.
8. steam generator according to claim 5, it also comprises plane outer cover and the internal plane part that comprises heating element heater, described plane outer cover and plane interior section limit at least a portion of the fluid flowing path that comprises plane channel.
9. steam generator according to claim 8, wherein, described plane outer cover and plane interior section comprise the blade being configured to along fluid flowing path direct fluid.
10. steam generator according to claim 9, wherein, described blade limits the position of the direction flip-flop of fluid flowing path.
11. steam generators according to claim 10, wherein, the quantity of the position of the direction flip-flop of described fluid flowing path is less than three.
12. steam generators according to claim 8, wherein, described plane outer cover is the first lid, and described steam generator is also included in the second lid of the opposite side of the first lid of internal plane part.
13. steam generators according to claim 12, wherein, described the second lid comprises entrance and limit another part of fluid flowing path together with internal plane part.
14. steam generators according to claim 8, wherein, described plane outer cover comprises the bar being integrally formed therewith.
15. steam generators according to claim 8, wherein, described plane channel comprises the non-filter element being integrally formed as a part for filtration device structure.
16. steam generators according to claim 1, it also comprises with entrance and is adjacent to arrange the thermostat with the operating temperature of sensing steam generator.
17. steam generators according to claim 1, wherein, described particle is the mineral salt existing with cationic form in liquid.
18. steam generators according to claim 1, wherein, described mineral comprise calcium and magnesium.
CN201280050322.6A 2011-09-02 2012-08-31 Vapour generator Active CN103874886B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US201161530481P true 2011-09-02 2011-09-02
US61/530,481 2011-09-02
US13/474,217 2012-05-17
US13/474,217 US9964299B2 (en) 2011-09-02 2012-05-17 Steam generator
PCT/US2012/053364 WO2013033548A1 (en) 2011-09-02 2012-08-31 Steam generator

Publications (2)

Publication Number Publication Date
CN103874886A true CN103874886A (en) 2014-06-18
CN103874886B CN103874886B (en) 2016-06-01

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US (1) US9964299B2 (en)
EP (1) EP2751482B1 (en)
JP (1) JP6083817B2 (en)
CN (1) CN103874886B (en)
AU (1) AU2012301700A1 (en)
CA (1) CA2847409C (en)
WO (1) WO2013033548A1 (en)

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EP2751482A1 (en) 2014-07-09
US9964299B2 (en) 2018-05-08
JP6083817B2 (en) 2017-02-22
EP2751482B1 (en) 2018-10-17
WO2013033548A1 (en) 2013-03-07
US20130058635A1 (en) 2013-03-07
CA2847409C (en) 2017-06-27
EP2751482A4 (en) 2015-09-02
JP2014529721A (en) 2014-11-13
AU2012301700A1 (en) 2014-03-20
CN103874886B (en) 2016-06-01

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